Locomotive grate



A. W. AND J. W. HULSON.

LOCOIVIOTIVE GRATE.

APPLICATION FILED SEPT. 1.1. 1920.

Patented Apr. 25, 1922.

A. W. AND J. W. HULSON.

LOYCOMOTIVE GRATE. APPLICATION FILED SEPT. II. I92o.

Patented Api'. 25, 1922.

2 SHEETS-SHEET 2.

45 be mounted on the aforesaid upwardlyy vso STATEv Amana WILLIAM nULsoNam) Joan WILLIAM HuLsoN, or xEoxUx, Iowa.

LOCOMOTIVE GRATE.

To'nall 'whom it may concern Be it known that we, ARTHUR W. HULsoN v andJ oHN W. HULsoN, citizens of the 'United` State's, residing at Keokuk,inthe 'county of Lee and State of Iowa, have invented certain new anduseful- Improvements in Locomotive Grates and we do declare the follow.-ing to be a full, clear, and exact description of the invention, such aswill enable others skilled in the art to which it ,appertains to makeand 'use the same. A This invention relates to improvements in furnacegrates and more particularly to those intended principally for use onlocomotives. J

The grates now used onlocomotives are provided at either their front orrear end with a section called a dumping grate, this section beindropped below the surface of the grate to ump the fire at the end of arun, but while the engine is on the road this section cannot be moved,with the result that ashes build up thereon and cut olf all drafttherethrough; It is our object, however, to provide a grate sectionwhich may be swung above the grate when cleaning off all fire and ashesat the end of a run, and

toequip saidsction with movable grate bars which may be operated whilethe engine is on the road, to prevent accumulatlon of ashes andconsequent choking of draft. The

ash pans of practically all-locomotives are too close to the grates topermit a downwardly swinging grate section to be used to advantage toprovide a h'ole of convenient4 size at either end of the grate throughwhich the fire may be scraped at the end of a run, and hence wepivotally mount-the grate section at one edge and swing it upwardly intosoA the lire box. By so doing a much larger hole may be formed inthegrate, through which to rake the re.

In carrying out the above end, a further object is to provide aconstruction which will permit grate bars of the usual length to Yetanother object is to provide ledges for supporting the verticallyswinging arms when in lowered position, thereby taking all strain ofsupportlng. 'the fire-bed from the Specification of Letten Patent.Patented Apr. 25, 1922..

Application tiled September 11, 1920. Serial No. 409,672. v

pivotal mounting of said arms and overcomlng any possibility of theweight of the fire having a' tendency to dump the grate as mightotherwise occur.,

With the foregoing and minor objects in view, the invention resides inthe novel construction and arrangement of parts hereinafter describedand claimed, the descriptive matter being supplemented bytheaccompanying drawings. l

Flgure 1 is a horizontal sectional view of a portion of alocomotivefire-box, illustrat- .inga top plan View of the improved grate.

igure 2 is a longitudinal sectional view taken substantially on line 2 2of Fig. 1.

Figure 3 is a vertical transverse sectional view cut approfximately online 3-3 of Fig. 2.

In the drawings above' briefly described,

the numeral 1 designates a portion' of a loco- Imotive fire-box, saidbox being provided with a plurality of horizontally spacedgrate sup--porting bars, two of which are designated by the numerals 2 and 3. Thebar 2 is lo-V cated at one side of the rebox and supports one .end ofeach of the several grate bars forming one longitudinal section of thegrate, the other ends of said bars being supported by the bar 3 whichwill also support one end of each of the grate bars of the next adjacentsection. For sake of illustration, only one longitudinal section of thegrate is shown, but obviously it may be constructed of any desirednumber of sections. A pair of horizontal grate Vbar supporting arms 4are disposed at either the front or rear end portions of the bars 2 and3, ad'

'acent the inner sides of said bars and these ars as shown cut awa at 5to receive the arms 4, whereby the dlstance between said arms will bethesame as that existing between the uninterrupted inner sides' of theaforesaid bars, thereby permitting all of the rocking grate bars to beof the same len th. These grate bars are of well known const uction andhave been designated by the numerals 6 and 6, the bars 6 being rockablysupported by the longitudinal bars 2 and 3,

while the trunnions at the ends ofthe bars 6a are rotatably received inappropriate openings in the' arms 4. Provision is made for shaking orrocking al1 of the bars 6 and 6 whereby lthe entire grate may be keptclean to produce maximum heating eciency Q i iguanas and provision isalso made for swinging the arms 4 upwardlyto elevate all of the gratebars 6a, thereby forming a gap in the grate by a transverse rock shaft 7to which the outer ends of said armsl are secured, the ends of saidshaft 7 being rockably mounted in any preferred manner upon the bars 2and 3.

l lever is operated, the link swings the.

' swinging the arms A guard or grating 8 preferably extends over' therock shaft 7 'and is suitably secured to the bars 2 3.

For rocking the shaft to raise the arms 4 as desired, any suitablemeanscan well be employed. However, a depending crank arm .9 is shown on saidshaft connected with. a link 10 which extends from the lower end of` asuitable operating lever 11. When this crank arm 9 thereby rocking theshaft 7 and 4 upwardly to elevate the grate bars 6a as shown in dottedlines in Fig. 2.

For taking the weight of the ,arms 4 from the rock shaft when said armsare lowered and thereby supporting the weight of the fire independentlyof said shaft, the inner sides of tlie supporting bars 2 and 3 areprovided with horizontal ledges -12 upon which the arms rest as shown,and at intervals these led es may be provided with horizontal lugs 13 ordirect contact with the arms, as seen for instance in Fig. 3. rllheledges in question not only support the weight of the arms 4, the gratebars 6a, and the fire independently of the rock shaft 7, but said ledgeswill prevent any possibility of the arms in question swinging downwardlyand possibly dumping the lire by accident.

For simultaneously .rocking all of the grate bars, said bars areprovided with depending crank arms 14 and 14a the former being carriedbythe bars 6 whereas the latter depend from the bars 6a.-

A horizontal link 15 pivotally. connects all of the arms 14 while asimilar link 115il is pivoted to the arms 14a. Both links 1 5 and 15aare pivoted at 16 and 16?L to upstanding ears 17 and 17 on a mainhorizontal operating link 18, the pivot 16a being preferably locateddirectly below the shaft 7 as shown in Fig. 2. The outer end of link 18is shown connected with the lower end of an operating lever 19 and whenthis lever is oscillated, .reciprocation of .all of the links 15, 15a,and18 takes place, thereby simultaneously rocking all of the. grate bars6 and 6EL to shake the fire. When the lever 11 is operated to swing thearms 4 upwardly for elevating the upwardly swinging grate section, thelink laswings on the pivot 16a,

as shown by the dotted lines in Fig. 2. f The swinging grate section maybe located from the upwardlyfswinging grate sectiononto the adjacentpart of the grate. This having beenl done, said 'swinging grate sectionis swung upwardly, thus forming an un? usually large hole throughwhich'all. material left in the grate maybe scraped.

By constructing the device in or approximately in the manner shown anddescribed,

lit will not only be comparatively simple and inexpensive, but will behighly efficient and desirable, and since probably the best results maybe obtainedV from the details disclosed, suchdetails may be followed.However, within the scope of the invention as claimed, numerous changesin form, proportion and minor details may be resorted to if foundexpedient.

We claim: l

1. A grate com rising horizontally spaced supporting mem ers, a pair ofhorizontal arms adjacent the inner sides of 'said supporting members anddisposed at one end portion of the grate, means pivotally supporting theouterends of said arms, rocking grate bars mounted on said supportinginem` bers and other rocking grate bars mounted on said arms, means forrocking all of said grate "bars, means for swinging said arms upwardlyto 'elevate all of the grate bars carried thereby, land means forpreventing downward swinging of said arms below the grate. l y

2i A ate comprising horizontally spaced supporting bars, a pair ofhorizontal arms adjacentthe inner sides of said supporting bars anddisposed at one endportion of the grate, said inner sides of said barsbeing cut' away to receive said arms andhaving ledges on which said armsrest, means pivotally mounting the Outer ends of said arms, gratey barsextending between and mounted on said supporting bars and other gratebars mounted on saidarms, means for rocking-all o said grate bars, andmeans for swinging sai arms upwardly to elevate all of the grate barscarried thereby.

3. A grate comprising horizontally spaced supporting members, armsadjacentthe inner sides 'ofsaid members anv grate, meanspivotallysupporting the outer endsvv `of said arms, means for preventing swingingof said arms `below said supporting members, rocking grate bars mountedon lsaid' supporting members and other rockingl grate bars moui'ijted'onsaid arms, crank 13 I ice a pair of horizontal disposed at one endportion of the i' arms depending from said grate bars, a horizontal linkconnecting the crank arms of the arm-carried grate bars, anotherhorizontal link connecting the crank arms of the other grate bars, amain horizontal operating link Eivoted to both of the aforesaid linkswherey all of the grate bars may be simultaneously rocked, and means forswinging the aforesaid horizontal arms upwardly to elevate all of thegrate bars carried thereby.

4. A grate comprising horizontally spaced supporting bars, a pair ofhorizontal arms adjacent the inner sides of said supporting bars anddisposed at one yend portion of the grate, said bars being recessed toreceive said arms and having ledges upon which they normally rest,aplurality of-grate bars mounted on said arms and other grate barsmounted on said supporting bars, means for simultaneously rocking saidgrate bars, a rock shaft mounted on said supporting bars and rigidlysecured to the outer ends of said arms, a crank arm depending from saidrock shaft, and means connected with said crank arm for turning saidrock shaft to raise the first named arms to elevate the grate barscarried thereby.

5. A locomotive grate having an upwardly swinging frame section and aplurality of fire shaking bars mounted thereon, said frame sectionhaving its pivotal axis at one edge of the grate, means for swingingsaid frame section and fire shaking bars upwardly above the remainder ofthe grate to form a. fire-dumping opening, means for preventing downwardswinging of said frame section below its normal operative position, andmeans for shaking said bars.

y6. Agrate comprising horizontally spaced supporting bars, a pair ofhorizontal arms adjacent the inner side of said supporting bars anddisposed at one end portion of the grate, said inner .sides of said barsbeing cut away to receive said arms, means pivotally mounting vthe outerends of said arms, means for preventing downward swinging 'of the armsbelow said supporting bars, grate bars extending between and mounted onsaid supporting bars and other grate bars mounted on said arms, meansfor rocking all of said'grate bars, and means for swing-A ing said armsupwardly to elevate all of the grate bars carried thereby.

7. A locomotive grate comprising a main grate section having fireshaking bars, an upwardly swinging frame section at one extremity ofsaid main grate section, the pivotal axis 'of said frame section beinglocated at one edge of the grate, means for swinging said frame sectionupwardly to form a fire-dumping opening, means for pre- Venting downwardswinging of said frame section below its normal operative position,additional fire shaking bars mounted on said frame section, and commonmeans for simultaneously shaking all of the bars of the grate.

In testimony whereof wev have hereunto set our hands.

ARTHUR WILLIAM HULSON. JOHN WILLIAM HULSON.

